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ABB 1SDA104934R1 Diverter Opening Release Device 

1. Key Parameters

• Product Model: 1SDA104934R1
• Product Type: Diverter Opening Release Device (mechanical-electrical hybrid activation)
• Core Function: Triggers the opening of diverter mechanisms in low-voltage switchgear; supports both manual override and electrical signal activation for flexible operation
• Electrical Specifications:
  • Rated Control Voltage (Uc): 230V AC (50/60Hz) – standard; optional 110V AC/24V DC variants available
  • Rated Control Current (Ic): 0.8A (at 230V AC, 50Hz)
  • Dielectric Strength: 2.5kVrms (between control circuit and ground; 1min test duration)
  • Insulation Resistance: ≥100MΩ (at 500V DC, 25℃)
  • Electrical Life: ≥10,000 operation cycles (electrical activation mode)
• Mechanical Specifications:
  • Activation Modes:
    • Electrical: Solenoid-driven (response time ≤100ms)
    • Manual: Mechanical lever (for emergency override; 5~10N activation force)
  • Operating Force (Mechanical): 5~10N (lever actuation); 20~30N (auxiliary lock release)
  • Mechanical Life: ≥50,000 operation cycles (manual + electrical combined)
  • Mounting: Panel-mounted (compatible with ABB low-voltage switchgear enclosures); 4-M4 threaded holes (mounting pitch: 50mm × 30mm)
  • Dimensions (W×H×D): 65mm × 85mm × 45mm (compact profile for dense switchgear layouts)
  • Weight: Approximately 280g
  • Material:
    • Housing: Flame-retardant polyamide 6.6 (UL94 V-0; resistant to industrial chemicals)
    • Internal Components: Galvanized steel (corrosion resistance) + copper-alloy contacts (low electrical resistance)
• Environmental Ratings:
  • Operating Temperature Range: -25℃~+70℃ (-13℉~158℉)
  • Storage Temperature Range: -40℃~+85℃ (-40℉~185℉)
  • Humidity Tolerance: ≤95% RH (non-condensing, 40℃)
  • Vibration Resistance: 10~500Hz, 2g acceleration (IEC 60068-2-6; no mechanical failure)
  • Shock Resistance: 30g acceleration (11ms duration, IEC 60068-2-27; maintains functionality post-impact)
• Compliance Standards: IEC 60947-1 (low-voltage switchgear safety), IEC 60947-5-1 (control circuit devices), UL 508 (industrial control equipment), CE (EU safety directive)

2. Key Features

• Hybrid Activation Modes: Combines solenoid-driven electrical activation (for automated system integration) and manual lever override (for emergency use)—ensuring diverter opening is possible even if the control voltage fails (critical for safety in power distribution systems).
• Fast Response Time: ≤100ms electrical activation delay enables rapid diverter operation, which is essential for fault current limiting (FCL) or emergency isolation scenarios where delayed action could damage switchgear or cause downtime.
• Industrial-Grade Durability: Flame-retardant polyamide housing (UL94 V-0) and galvanized steel components resist corrosion, chemical exposure (e.g., industrial oils, coolants), and mechanical wear—ensuring reliable performance in harsh switchgear environments (e.g., manufacturing plants, data centers).
• ABB Switchgear Compatibility: Optimized for integration with ABB low-voltage switchgear series (MDmax, Tmax, Emax 2), featuring matching mounting dimensions and electrical interfaces—no custom modifications required for seamless installation.
• Visual Status Indication: Built-in LED indicator (GREEN: ready; RED: activated) provides real-time feedback on the device’s operational state, enabling maintenance teams to quickly verify activation status during inspections or troubleshooting.
• High Cycle Life: ≥10,000 electrical cycles and ≥50,000 mechanical cycles minimize replacement frequency, reducing maintenance costs for switchgear systems operating in 24/7 industrial environments.
• Safety-Certified Design: Complies with global low-voltage safety standards (IEC 60947, UL 508) and features reinforced insulation (2.5kVrms) to prevent electrical shock or short circuits—enhancing safety for personnel working on switchgear.

3. Application Fields

• Low-Voltage Switchgear Systems: Used in ABB MDmax/Tmax switchgear for industrial power distribution (e.g., factories, data centers) to activate diverters for fault current limiting or load redistribution during system anomalies.
• Power Distribution Panels: Integrated into commercial/industrial power panels (e.g., shopping malls, hospitals) to enable manual/automated isolation of faulty circuits via diverter mechanisms—preventing power outages in non-affected areas.
• Renewable Energy Inverters: Paired with diverter circuits in solar/wind inverter systems to redirect excess current (e.g., during grid faults) and protect inverter components from damage—ensuring continuous energy feed-in where possible.
• Industrial Motor Control Centers (MCCs): Installed in MCCs for manufacturing lines (automotive, electronics) to release diverters that isolate faulty motor circuits, minimizing downtime for production equipment.
• Data Center Power Infrastructure: Used in data center UPS and switchgear systems to activate diverters for rapid current redirection—protecting critical IT equipment from voltage surges or fault currents.
• Utility Distribution Networks: Deployed in utility-owned low-voltage substations to control diverter mechanisms for load balancing or emergency isolation—supporting reliable power supply to residential/commercial areas.

4. Precautions

• Voltage Compatibility: Ensure the device’s rated control voltage (Uc = 230V AC, unless optional variant is selected) matches the switchgear’s control circuit voltage. Mismatched voltage causes solenoid failure or permanent damage.
• Mounting Alignment: Align the device with the diverter mechanism’s actuation point per ABB’s installation guidelines. Misalignment increases activation force, reduces mechanical life, or prevents proper diverter opening.
• Electrical Wiring: Use copper conductors (0.5mm²~1.5mm²) for control circuit wiring. Tighten terminal screws to 0.6~0.8N·m to avoid loose connections (which cause voltage drops or overheating).
• Manual Override Use: Reserve manual lever activation for emergencies only (e.g., control voltage loss). Frequent manual use accelerates wear on mechanical components and may compromise electrical activation reliability.
• Environmental Protection: Install in enclosed switchgear cabinets to shield from dust, moisture, and direct sunlight. Avoid exposure to corrosive gases (e.g., sulfur dioxide in industrial zones) or temperatures beyond -25℃~+70℃.
• Maintenance Checks: Inspect the device quarterly:
  • Verify LED status (GREEN = ready) and test electrical activation with a rated control signal.
  • Lubricate manual lever hinges annually (use silicone-based lubricant) to maintain smooth operation.
  • Check for corrosion on terminals or internal components—clean with a dry cloth if present.
• Replacement Guidelines: Replace the device if:
  • Electrical activation response time exceeds 200ms.
  • Manual lever requires >15N force to actuate.
  • LED fails to illuminate or shows permanent RED (activated) without signal input.
• 

The structure and details of the product：

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